Spinning frame and cam



Aug. 34, M3 1,465,238

I J. P. M CAVITT: SPINNING FRAME AND CAM Filed May 1'7. 1922' WITNESS 8 INVENTOR U GFZLT'L J E'Q Cal/i212;

A TTOR/VEVS Patented Aug. 14, 1.923.

UNEFEQ STATES retain earner @FFEQE.

JOHN P. MCCAVITT, OF FALL RTVEB, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO RI GHABD WADDICQR, F FALL"R-IVER, MASSACHUSETTS.

Application filed May 17,

, State of Massachusetts, have invented a new and Improved SpinningFrame and Cam, of

which the following is a full, clear, and exact lescription. i I

This invention relates to an apparatus for spinning yarn? and Particularly to an improved cam'and associated spinning frame, thev construction being such that the spindles onthe' frame are adapted to receive an extralargesupply of yarn. j g

The object of the invention'is to provide a simple, effective construction which will operate substantially ingthe usuali manner but which will produce an increased yardage in the yarn wound on the spindles of the 20. device.

Another object in view is to provide an improved cam interposed in the driving mechanism of the spinning frame whereby a slow and. fast motion may be secured to permit an extra supply of yarn to be'wound on the pindles at a desired point.

In the accompanying drawing Figure 1 is a fragmentary side view of a spinning frame with a cam associated there with, the same disclosing oneembodiment of the invention.

Figure 2 is an enlarged side view of the cam and associated parts shown in Figure 1, said cam being shown in a different position.

Figure 3 is an edge view of the structure shown in Figure 2.

Referring to the accompanying drawing by numerals, 1 indicates spindles of any de sired kind which are supported in any suitable or usual manner and rotated in'any usual manner when the frame 2 is in operation. This spinning frame is of the usual construction and in fact all of the parts shown in Figure l are of the usual construction except the cam 3 and wheel 5 and the way the same are associated with the other parts including the way the chain i'is mountedas well as the way the wheel 5 is connected with chain 6. In spinning frames of this kind, a rail 7 is provided which travels up and down for guiding the yarn as it is wound on the spindles 1. One or more rods 8 may be used for causing the rail 7 to travel upwardly, said rail moving downwardly usual- SPINNING rennin nun CAM.

1922. Serial in. 561,779.

1y under the action of gravity. The various rods 8 are guided in any suitable manner in the frame 2 and are provided with enlarged feet 9 at the lower. end for engaging the end of the operating lever 10. This operatmg lever is connected in any suitable manner with the lever 11 pivotally mounted at 12on the bracket 13. l r

. The lever 11 is connected in any suitable manner to a rod or cable 14 and as said rod or cable is moved longitudinally, movement will be transmitted to the various parts including the rod 8 for elevating the same or permitting the same to be moved downwardly. The lever 11 and rods 8 arepreferably arranged at suitable distances along the frame 2 so that'the rail 7 will bemoved upwardly and will remain horizontal. Where this movement is an even and regular up and down movement, a certain amount of'ya'rnis wound on the spindles. Heretofore, this even up and down movement was provided by connecting chain 6 directly to the lever 11. Suitable well known mechanism not shown on the drawing operates the rod 15 to move the same back and forth and this mechanism, not shown,usually causes the rail '7 an up and down movement of about one and three quarter inches and then increases this movement as the spindles begin to fill.

In the present instance, the wheel 5 and the cam 3 have been interposed between the rod 15and the lever 11' so as to secure a slow movement of the rail 7 at the lower part of the spindles 1 and then gradually quicken the movement at the upper part whereby a larger number of yards of yarn may be wound on each spindle.

As indicated in Figures 1 and 2, the wheel 5 is mounted on a suitable shaft 16 and the periphery is circular, said wheel being connected at 17 to the chain 6 so that when the chain 6 is moved the wheel will be rotated for part of a revolution. Rigidly secured to the shaft 16 is the cam 3 which is arranged in the position shown in Figure 1 when the rail 7 is arranged as shown in Figure 1 while the parts will assume the position shown in Figure 2 when the rail 7 is moved to its uppermost position. When the up and down travel of the rail 7 is begun, said travel is usually one and three eighth inches though it could be any desired number of inches and this travel is continually and the cam at a larger diameter.

radually increased at every trip of the rail luntil the bobbin'is full and the travel of the rail has increased to one and three quarter inches. V r

The provision of the cam 3 causes the speed of the rail 7 to increase as the cam turns over and the chain l engages part of It is to be noted that when the device first starts, the cam and associated parts are in the position shown 'in Figure 1, namely, at the smallest diameter of the cam and as the wheel 5 rotates cam 3' willalso rotate. The first part of the rotation will cause the rail 7 to move gradually upward at substantially an even speed but as the chain 7 beginsto engage the larger diameter of the cam the speed will graduall increase until the parts assume the position shownin Figure 2. As the cam reverses its movement, "the speed of downward travel of the rail 7 will be compara tively fast and will gradually decrease in speed until it reaches its lowermost position.

near the upper ends will be fastso that this way, the movement oi rail 7 near the lower ends of the spindles will be slow and a larger amount of yarn willbe wound at the lower end of the spindles and, consequently, a properly formed bobbin will be theresult. Without the use of the cam 3 the movement of the rail 7 will be uniform and, consequently, only a certain amount of yarn could be wound on the spindles while the use of the cam 3 permits a larger amount to be wound, said larger amountf being arranged near the base of the spindle.

What I claim is The combination with an actuating rod adapted to raise the yarn guiding frame ofa spinning machine, a shaft rotatably mounted on the frame. of said spinning machine, a

disk, said shaft and the second mentioned disk, 2, flexible ulling element connected to the second mentioned disk and adapted to be wound thereon, a reciprocating bareenne'ct ed tothe op osite endefsa'id second mam tioned pulling element, said bar being actuated by said second mentioned pulling element" as said eccentrieally mounted cam disk rotates, and means operated by said'bar for frame.

ohn P. Mccavir' r.

isk and adapted to raising said actuating rod and said guiding 

